Railway vehicle and railway vehicle use bogie car

Abstract

A traction link of a bogie frame is connected to a connection member which extends down from a car body. In an interior portion of the connection member, a large number of particle-shaped members are accommodated. The rotation vibrations which are generated from a system drive of a running electric motor, a reduction gear unit and a shaft coupling are transmitted to the connection member and the car body through the traction link. The vibration energy generated in the connection member is converted to kinetic energy in the particle-shaped members by collisions between the particle-shaped members inside the connection member and, so that the vibrations in the connection member can be reduced. Accordingly, the propagation of the vibrations to the car body can be restrained. In a railway vehicle bogie car, the vibrations which are generated by an unbalance of the drive system can be restrained, and the noise inside the car produced by the vibrations can be reduced.

What is claimed is:  
     
       1. A railway vehicle having a car body supported on a bogie frame, a connection member, which extends down from a lower face of said car body and said bogie frame being connected by a traction link, and, in an interior portion of said connection member, a large number of particle-shaped members are movably accommodated. 
     
     
       2. A railway vehicle according to  claim 1 , characterized in that: 
       said connection member comprises a first portion which extends down from said lower face of said car body and a second portion which extends in a generally horizontal direction from a lower end portion of said first portion;  
       said traction link is connected to an end portion of said second portion of said connection member; and  
       said particle-shaped members are accommodated in an interior portion of said second portion of said connection member.  
     
     
       3. A railway vehicle according to  claim 2 , characterized in that 
       a lower face of said second portion of said connection member is inclined.  
     
     
       4. A railway vehicle bogie car having a bogie frame for supporting a car body, a connection member, which extends down from a lower face of said car body, and said bogie frame being connected by means of a traction link, and, in an interior portion of said connection member, a large number of particle-shaped members are movably accommodated. 
     
     
       5. A railway vehicle bogie car according to  claim 4 , characterized in that: 
       said connection member comprises a first portion which extends down from said lower face of said car body and a second portion which extends in a generally horizontal direction from a lower end portion of said first portion;  
       said traction link is connected to an end portion of said second portion of said connection member; and  
       said particle-shaped members are accommodated in an interior portion of said second portion of said connection member.  
     
     
       6. A railway vehicle use bogie car according to  claim 5 , characterized in that 
       a lower face of said second portion of said connection member is inclined.